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EP0993130A3 - Space time block coded transmit antenna diversity for WCDMA - Google Patents

Space time block coded transmit antenna diversity for WCDMA Download PDF

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Publication number
EP0993130A3
EP0993130A3 EP99203293A EP99203293A EP0993130A3 EP 0993130 A3 EP0993130 A3 EP 0993130A3 EP 99203293 A EP99203293 A EP 99203293A EP 99203293 A EP99203293 A EP 99203293A EP 0993130 A3 EP0993130 A3 EP 0993130A3
Authority
EP
European Patent Office
Prior art keywords
signals
input
estimate
wcdma
transmit antenna
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP99203293A
Other languages
German (de)
French (fr)
Other versions
EP0993130A2 (en
EP0993130B1 (en
Inventor
Rohit c/o Durand 112 Negi
Anand G. Dabak
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Texas Instruments Inc
Original Assignee
Texas Instruments Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Texas Instruments Inc filed Critical Texas Instruments Inc
Publication of EP0993130A2 publication Critical patent/EP0993130A2/en
Publication of EP0993130A3 publication Critical patent/EP0993130A3/en
Application granted granted Critical
Publication of EP0993130B1 publication Critical patent/EP0993130B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0667—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of delayed versions of same signal
    • H04B7/0669—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of delayed versions of same signal using different channel coding between antennas
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7097—Interference-related aspects
    • H04B1/711—Interference-related aspects the interference being multi-path interference
    • H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0064—Concatenated codes
    • H04L1/0065—Serial concatenated codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0071—Use of interleaving
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • H04L1/0618—Space-time coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • H04L1/0618—Space-time coding
    • H04L1/0631—Receiver arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Transmission System (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A mobile communication system is designed with an input circuit coupled to receive a first plurality of signals (rj (i+τj ), i=0-N-1) during a first time (T0-T1) from an external source and coupled to receive a second plurality of signals (rj (i+τj ), i=N-2N-1) during a second time (T1-T2) from the external source. The input circuit receives each of the first and second plurality of signals along respective first and second paths (j). The input circuit produces a first input signal (610) (R 1 / j ) and a second input signal (614) (R 2 / j ) from the respective first and second plurality of signals. A correction circuit is coupled to receive a first estimate signal (302) (α 1 / j ), a second estimate signal (306) (α 2 / j ) and the first and second input signals. The correction circuit produces a first symbol estimate (
Figure 80000001
) in response to the first and second estimate signals and the first and second input signals. The correction circuit produces a second symbol estimate (
Figure 80000002
) in response to the first and second estimate signals and the first and second input signals.
EP99203293.8A 1998-10-07 1999-10-07 Space time block coded transmit antenna diversity for WCDMA Expired - Lifetime EP0993130B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US10344398P 1998-10-07 1998-10-07
US103443 1998-12-03
US205029 1998-12-03
US09/205,029 US6643338B1 (en) 1998-10-07 1998-12-03 Space time block coded transmit antenna diversity for WCDMA

Publications (3)

Publication Number Publication Date
EP0993130A2 EP0993130A2 (en) 2000-04-12
EP0993130A3 true EP0993130A3 (en) 2004-05-06
EP0993130B1 EP0993130B1 (en) 2016-09-28

Family

ID=26800468

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99203293.8A Expired - Lifetime EP0993130B1 (en) 1998-10-07 1999-10-07 Space time block coded transmit antenna diversity for WCDMA

Country Status (4)

Country Link
US (7) US6643338B1 (en)
EP (1) EP0993130B1 (en)
JP (1) JP4421030B2 (en)
KR (5) KR20000028887A (en)

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US6728302B1 (en) * 1999-02-12 2004-04-27 Texas Instruments Incorporated STTD encoding for PCCPCH
US6775260B1 (en) * 1999-02-25 2004-08-10 Texas Instruments Incorporated Space time transmit diversity for TDD/WCDMA systems
US6515978B1 (en) * 1999-04-19 2003-02-04 Lucent Technologies Inc. Methods and apparatus for downlink diversity in CDMA using Walsh codes
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US6594473B1 (en) * 1999-05-28 2003-07-15 Texas Instruments Incorporated Wireless system with transmitter having multiple transmit antennas and combining open loop and closed loop transmit diversities
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Also Published As

Publication number Publication date
JP4421030B2 (en) 2010-02-24
US7366266B2 (en) 2008-04-29
EP0993130A2 (en) 2000-04-12
KR20000028887A (en) 2000-05-25
US20100014619A1 (en) 2010-01-21
US6643338B1 (en) 2003-11-04
US20020080894A1 (en) 2002-06-27
KR20090048426A (en) 2009-05-13
KR100965735B1 (en) 2010-06-24
US6449314B1 (en) 2002-09-10
US7200182B2 (en) 2007-04-03
US20020191704A1 (en) 2002-12-19
KR20080088567A (en) 2008-10-02
KR20070081130A (en) 2007-08-14
US7613259B2 (en) 2009-11-03
US20040086065A1 (en) 2004-05-06
US20020090038A1 (en) 2002-07-11
JP2000138623A (en) 2000-05-16
US6424679B1 (en) 2002-07-23
EP0993130B1 (en) 2016-09-28
US20050111597A1 (en) 2005-05-26
US8107570B2 (en) 2012-01-31
KR20090048427A (en) 2009-05-13

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